Page:Memory (1913).djvu/120

In the case of reversal plus skipping of an intermediate syllable, I(16) I(14) I(12) ....I(4) I(2) I(15) I(13) ....I(3) I(1). For the first kind of derivation I have carried out ten experiments; for the second, only four.

The results are as follows:

1) With derivation of the transformed series by mere reversal of the syllable sequence.

The original series were learned in x seconds		The corresponding derived series in y seconds		The latter, therefore, with a saving of z seconds
x=	1172 1317 1213 1202 1257 1210 1285 1260 1245 1329	y=	1023 1170 977 1194 1031 1087 1051 1150 1070 1189	z=	149 147 236 8 226 123 234 110 175 140
m	1249	1094		155 P.E.m=15

In relation to the time of learning the original series the saving amounts to 12.4 per cent.

2) With derivation of the transformed series by reversal and at the same time by skipping one immediate syllable.

x=	1337 1255 1158 1313	y=	1291 1164 1143 1224	z=	64 91 15 89
m	1266	1206		60 P.E.m=12

In relation to the time of learning the original series the saving amounted to 5 per cent.

As a result of the learning of a series certain connections of the members are therefore actually formed in a reverse as well as in a forward direction. These connections are revealed in this way, that series which are formed out of members thus